.qu-item{
    width: 100%;
    background: #fff;
    height: auto;
    font-size:36px;
    font-family:PingFang SC;
    font-weight:400;
    color:rgba(51,51,51,1);
    .ans{
        width: 100%;
        padding: 20px 20px;
        background-color: #FAFBFF;
        font-size:28px;
        font-family:PingFang SC;
        font-weight:400;
        color:rgba(102,102,102,1);
        line-height:40px;
    }
}